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Fencer Intel
medium 5.3

CVE-2024-51977 json

Unauthenticated leak of sensitive information affecting multiple models from Brother Industries, Ltd., FUJIFILM Business Innovation, Ricoh, Toshiba Tec, and Konica Minolta, Inc.

published last yr. modified 4mo ago also EUVD-2024-54705

cvss
5.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
46.6%
EPSS 46.6% chance of exploitation in 30 days, percentile 98%
public exploits
1
Metasploit

Summary

An unauthenticated attacker who can access either the HTTP service (TCP port 80), the HTTPS service (TCP port 443), or the IPP service (TCP port 631), can leak several pieces of sensitive information from a vulnerable device. The URI path /etc/mnt_info.csv can be accessed via a GET request and no authentication is required. The returned result is a comma separated value (CSV) table of information. The leaked information includes the device’s model, firmware version, IP address, and serial number.

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Timeline

  1. First public exploit (Metasploit auxiliary/admin/misc/brother_default_admin_auth_bypass_cve_2024_51978)
  2. Published

CISA SSVC

Exploitation
Proof of concept is public
Automatable
yes
Technical impact
partial
Assessed
last yr.

Exploit prediction

46.63% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-11).

Exploits and checks

  • Metasploit auxiliary/admin/misc/brother_default_admin_auth_bypass_cve_2024_51978 Multiple Brother devices authentication bypass via default administrator password generation metasploit auxiliary, normal rank, 2025-06-25
  • assets.contentstack.io https://assets.contentstack.io/v3/assets/blte4f029e766e6b253/blt6495b3c6adf2867f/685aa980a26c5e2b1026969c/vulnerability-disclosure-whitepaper.pdf referenced PoC, tagged "exploit" by a source, unverified
  • github.com https://github.com/sfewer-r7/BrotherVulnerabilities referenced PoC, tagged "exploit" by a source, unverified
  • github.com https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2024/CVE-2024-51977.yaml referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected products

  • Brother Industries, Ltd HL-L8260CDN
  • Brother Industries, Ltd DCP-J928N-W/B
  • Brother Industries, Ltd DCP-J987N-W/B
  • Brother Industries, Ltd DCP-T510W(China)
  • Brother Industries, Ltd DCP-T710W(China)
  • Brother Industries, Ltd MFC-J1800DW (Europe)
  • Brother Industries, Ltd MFC-J1800DW (USA)
  • Brother Industries, Ltd MFC-J4340DWE
  • Brother Industries, Ltd MFC-J4345DWXL
  • Brother Industries, Ltd MFC-J805DWXL
  • Brother Industries, Ltd MFC-J815DWXL
  • Brother Industries, Ltd MFC-J995DWXL
  • Brother Industries, Ltd MFC-T810W(China)
  • Brother Industries, Ltd DCP-B7520DW (China)
  • Brother Industries, Ltd DCP-B7535DW (China)
  • Brother Industries, Ltd DCP-L2535DW (China)
  • Brother Industries, Ltd DCP-L2540DW (Japan)
  • Brother Industries, Ltd DCP-L2550DW (China)
  • Brother Industries, Ltd DCP-L2550DW (Japan)
  • Brother Industries, Ltd DCP-L2550DW (Taiwan)
  • Brother Industries, Ltd HL-L2361DN
  • Brother Industries, Ltd MFC-L2700DW (Asia)
  • Brother Industries, Ltd MFC-L2715DW (Taiwan/Korea/Hong Kong)
  • Brother Industries, Ltd MFC-L2740DW (Japan)
  • Brother Industries, Ltd MFC-L2750DW (Japan)
  • Brother Industries, Ltd MFC-L3770CDW (Japan)
  • Brother Industries, Ltd MFC-L5755DW (Japan)
  • Brother Industries, Ltd MFC-L6900DW (Japan)
  • Brother Industries, Ltd MFC-L8610CDW (Japan)
  • Brother Industries, Ltd MFC-L9570CDW (Japan)
  • Brother Industries, Ltd TD-2130NSA
  • Brother Industries, Ltd TD-2135NSA
  • Brother Industries, Ltd TD-2135NWB
  • Brother Industries, Ltd TD-2135NWBSA
  • Brother Industries, Ltd DCP-J587N
  • Brother Industries, Ltd DCP-J973N W/B
  • Brother Industries, Ltd DCP-J978N W/B
  • Brother Industries, Ltd DCP-J982N W/B
  • Brother Industries, Ltd DCP-J987N W/B
  • Brother Industries, Ltd SP-1 (Japan)
  • Brother Industries, Ltd MFC-J903N
  • Brother Industries, Ltd HL-L8260CDW
  • Brother Industries, Ltd HL-L8360CDW
  • Brother Industries, Ltd HL-L8360CDWT
  • Brother Industries, Ltd HL-L9310CDW
  • Brother Industries, Ltd DCP-L8410CDW
  • Brother Industries, Ltd MFC-L8610CDW
  • Brother Industries, Ltd MFC-L8690CDW
  • Brother Industries, Ltd MFC-L8900CDW
  • Brother Industries, Ltd MFC-L9570CDW

Classification

Weakness
  • CWE-538 Insertion of Sensitive Information into Externally-Accessible File or Directory

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.